21000232302 has 32 divisors (see below), whose sum is σ = 49297846272. Its totient is φ = 5837901984.

The previous prime is 21000232247. The next prime is 21000232313. The reversal of 21000232302 is 20323200012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6755278 + ... + 6758385.

It is an arithmetic number, because the mean of its divisors is an integer number (1540557696).

Almost surely, 2^21000232302 is an apocalyptic number.

21000232302 is an abundant number, since it is smaller than the sum of its proper divisors (28297613970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21000232302 is a wasteful number, since it uses less digits than its factorization.

21000232302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13513712.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 21000232302 its reverse (20323200012), we get a palindrome (41323432314).

The spelling of 21000232302 in words is "twenty-one billion, two hundred thirty-two thousand, three hundred two".